So, I'm not sure is Roomshaker still in development, or you gave up on it. I just have several ideas for it. Some complicated, some less complicated.
I'm sure that I've read somewhere that odd room linking is out of question, but I was wondering if it's possible to include several features, such as:

- Making modifications to tiles (such as making "stable" loose floors)

- Making custom events (stepping on a certain tile, or drinking potion etc, makes door/chomper open or close, changes
one tile with another...)

- infinite guard health

- Lastly, Roomshaker that came with TotalPack version 2.06 (?) had a nice feature where tiles were sorted like "all tiles", "common", "events", "misc" and "palace", so all tiles could be easily found, but newer versions don't have that. I have only "floor" tile among "common" list which isn't very helpful since floor tile is already first on "all tiles" list. This would make level editing a lot quicker.

Coco wrote:
- Lastly, Roomshaker that came with TotalPack version 2.06 (?) had a nice feature where tiles were sorted like "all tiles", "common", "events", "misc" and "palace", so all tiles could be easily found, but newer versions don't have that. I have only "floor" tile among "common" list which isn't very helpful since floor tile is already first on "all tiles" list. This would make level editing a lot quicker.

I guess it's a bug.
RS178_Rel23 had the correct tile groups, RS179_Rel24 and RS180_Rel25 has the wrong ones.